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Hyper-stable organo-Eu-III luminophore under high temperature for photo-industrial application

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Title: Hyper-stable organo-Eu-III luminophore under high temperature for photo-industrial application
Authors: Nakajima, Ayako Browse this author
Nakanishi, Takayuki Browse this author →KAKEN DB
Kitagawa, Yuichi Browse this author
Seki, Tomohiro Browse this author →KAKEN DB
Ito, Hajime Browse this author →KAKEN DB
Fushimi, Koji Browse this author →KAKEN DB
Hasegawa, Yasuchika Browse this author →KAKEN DB
Keywords: light-emitting-diodes
lanthanide luminescence
coordination polymer
fluorescent lamps
Eu(III) complexes
Issue Date: 15-Apr-2016
Publisher: Nature Publishing Group
Journal Title: Scientific reports
Volume: 6
Start Page: 24458
Publisher DOI: 10.1038/srep24458
Abstract: Novel organo-Eu-III luminophores, Eu(hfa)(x)(CPO)(y) and Eu(hfa)(x)(TCPO)(y) (hfa: hexafluoroacetylacetonate, CPO: 4-carboxyphenyl diphenyl phosphine oxide, TCPO: 4,4',4 ''- tricarboxyphenyl phosphine oxide), were synthesized by the complexation of Eu-III ions with hfa moieties and CPO or TCPO ligands. The thermal and luminescent stabilities of the luminophores are extremely high. The decomposition temperature of Eu(hfa)(x)(CPO)(y) and Eu(hfa)(x)(TCPO)(y) were determined as 200 and 450 degrees C, respectively. The luminescence of Eu(hfa)(x)(TCPO)(y) under UV light irradiation was observed even at a high temperature, 400 degrees C. The luminescent properties of Eu(hfa)(x)(CPO)(y) and Eu(hfa)(x)(TCPO)(y) were estimated from emission spectra, quantum yields and lifetime measurements. The energy transfer efficiency from hfa moieties to EuIII ions in Eu(hfa)(x)(TCPO)(y) was 59%. The photosensitized luminescence of hyper-stable Eu(hfa)(x)(TCPO)(y) at 400 degrees C is demonstrated for future photonic applications.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 長谷川 靖哉

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